How long is the flight from Houston to London Heathrow Airport?

Departing from Houston to London Heathrow Airport will take you 9h. Airlines will cover a distance of 4820 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £299. Other airlines that can offer you cheap pricing are United Airlines, from £387, and Iberia, from £449. These flights start at 50% lower than the current average price 3 months from now.

What is the cheapest day to fly from Houston to London Heathrow Airport?

Travellers seeking maximum savings on their Houston to London Heathrow Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular airlines that fly from Houston to London Heathrow Airport?

The most popular airlines flying from Houston to London Heathrow Airport are British Airways, Iberia and United Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Houston to London Heathrow Airport?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Houston to London Heathrow Airport?

Travelers have found it’s best to book a flight 45 days in advance to save up to 57% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Houston to London Heathrow Airport 1-2 weeks in advance for as low as £514, or £782 for flights within the next 24 hours.

What is the cheapest month to fly from Houston to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Houston in October are about £574 on average during October, but can be found for as low as £384.

Can I find deals for flights from Houston to Heathrow that include hotel bookings?

Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Houston to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.

Can I find deals for business class flights from Houston to Heathrow?

Yes. Cheapflights offers flight deals from Houston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£187+ Flights from Houston to London Heathrow Airport

Q: How much does it cost for a return flight from Houston to London Heathrow Airport?

Airfare is below average for this route at the moment. Houston to London Heathrow Airport flights typically cost between £464 and £573 in January. The cheapest return flight price found within the last 3 days was £386 on Iberia (19 Jan-29 Jan).

Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 78 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Heathrow

Round-trip from	£386
One-way from	£187
Popular in	June
Cheapest in	February
Average price	£544

Iberia
19/1-29/1
Nonstop
19h 30m total
Houston to London

Search Deals

2/10
3 total stops
34h 15m total
Houston to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£119 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Houston to Heathrow

Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Mon 29/915:30IAH - LHR

Nonstop9h 10mBritish Airways

Wed 8/1014:50LHR - IAH

Nonstop10h 25mBritish Airways

Deal found 27/8£386

Mon 29/916:29IAH - LHR

1 stop12h 21mBritish Airways

Fri 10/1014:50LHR - IAH

Nonstop10h 25mBritish Airways

Deal found 27/8£389

Mon 29/918:39IAH - LHR

1 stop11h 36mIberia

Fri 10/1016:25LHR - IAH

1 stop13h 27mIberia

Deal found 27/8£397

Mon 29/914:33HOU - LHR

1 stop12h 27mBritish Airways

Fri 10/1008:20LHR - HOU

1 stop13h 51mBritish Airways

Deal found 27/8£397

Mon 13/1015:30IAH - LHR

Nonstop9h 10mBritish Airways

Sun 26/1009:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 28/8£423

Wed 3/1218:10IAH - LHR

1 stop11h 55mBritish Airways

Sun 7/1215:25LHR - IAH

Nonstop10h 35mBritish Airways

Deal found 28/8£426

Thu 6/1113:15IAH - LHR

1 stop11h 20mBritish Airways

Wed 12/1109:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 28/8£427

Wed 3/1212:15IAH - LHR

1 stop12h 35mIberia

Sun 7/1214:55LHR - IAH

1 stop13h 01mIberia

Deal found 28/8£434

Tue 18/1118:37HOU - LHR

1 stop11h 38mBritish Airways

Sun 23/1114:55LHR - HOU

1 stop15h 02mBritish Airways

Deal found 28/8£434

Thu 6/1112:15HOU - LHR

1 stop12h 35mBritish Airways

Wed 12/1108:20LHR - HOU

1 stop13h 34mBritish Airways

Deal found 28/8£434

Tue 11/1122:00IAH - LHR

1 stop29h 40mMultiple Airlines

Fri 14/1106:00LHR - IAH

2 stops21h 44mMultiple Airlines

Deal found 27/8£452

Mon 15/1221:45IAH - LHR

Nonstop9h 00mIberia

Thu 25/1209:35LHR - IAH

Nonstop10h 30mIberia

Deal found 28/8£453

Best flights from Houston to Heathrow
Discover carefully curated flight deals from Houston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2025.

Mon 19/117:18IAH - LHR

1 stop12h 47mBritish Airways

Thu 29/111:55LHR - IAH

1 stop14h 11mBritish Airways

Deal found 28/8£397

Wed 4/215:50IAH - LHR

Nonstop9h 00mIberia

Sat 14/215:25LHR - IAH

Nonstop10h 35mIberia

Deal found 28/8£423

Tue 30/910:00IAH - LHR

1 stop14h 30mUnited Airlines

Tue 21/1006:55LHR - IAH

1 stop15h 40mUnited Airlines

Deal found 28/8£465

Mon 20/1010:00IAH - LHR

1 stop17h 35mAir Canada

Tue 4/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 28/8£469

Wed 4/217:18IAH - LHR

1 stop12h 47mBritish Airways

Sat 14/215:25LHR - IAH

Nonstop10h 35mBritish Airways

Deal found 28/8£426

Tue 17/211:50IAH - LHR

1 stop13h 20mUnited Airlines

Thu 26/209:30LHR - IAH

1 stop14h 45mUnited Airlines

Deal found 28/8£467

Sun 19/1009:48IAH - LHR

1 stop21h 32mAir Canada

Wed 5/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 28/8£469

Mon 12/118:25HOU - LHR

1 stop11h 50mBritish Airways

Sun 25/110:15LHR - HOU

1 stop13h 48mBritish Airways

Deal found 28/8£434

Mon 20/1010:00IAH - LHR

1 stop17h 35mAir Canada

Wed 5/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 28/8£469

Tue 18/1118:37HOU - LHR

1 stop11h 38mBritish Airways

Sun 23/1114:55LHR - HOU

1 stop15h 02mBritish Airways

Deal found 28/8£434

Wed 15/1010:00IAH - LHR

1 stop14h 30mAir Canada

Wed 5/1106:50LHR - IAH

2 stops20h 49mAir Canada

Deal found 28/8£469

Wed 11/216:24HOU - LHR

1 stop13h 16mBritish Airways

Mon 23/210:35LHR - HOU

1 stop15h 28mBritish Airways

Deal found 28/8£434

Direct flights from Houston to Heathrow
Explore direct flight options from Houston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 August 2025.

Mon 19/115:50IAH - LHR

Nonstop9h 00mIberia

Thu 29/109:35LHR - IAH

Nonstop10h 30mIberia

Deal found 27/8£386

Wed 11/215:50IAH - LHR

Nonstop9h 00mIberia

Sun 22/215:25LHR - IAH

Nonstop10h 35mIberia

Deal found 28/8£423

Mon 15/1221:45IAH - LHR

Nonstop9h 00mIberia

Thu 25/1209:35LHR - IAH

Nonstop10h 30mIberia

Deal found 28/8£453

Thu 6/1115:50IAH - LHR

Nonstop9h 00mIberia

Sun 9/1115:25LHR - IAH

Nonstop10h 35mIberia

Deal found 27/8£460

Sun 14/916:20IAH - LHR

Nonstop9h 20mUnited Airlines

Tue 30/913:40LHR - IAH

Nonstop10h 15mUnited Airlines

Deal found 27/8£466

Wed 8/1021:00IAH - LHR

Nonstop9h 20mBritish Airways

Wed 29/1009:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 27/8£469

Wed 1/1021:00IAH - LHR

Nonstop9h 20mBritish Airways

Wed 22/1009:25LHR - IAH

Nonstop10h 20mBritish Airways

Deal found 26/8£470

Tue 30/921:00IAH - LHR

Nonstop9h 20mBritish Airways

Wed 22/1009:25LHR - IAH

Nonstop10h 20mBritish Airways

Deal found 26/8£471

Tue 21/1015:30IAH - LHR

Nonstop9h 10mBritish Airways

Wed 12/1109:35LHR - IAH

Nonstop10h 30mBritish Airways

Deal found 27/8£471

Tue 30/915:30IAH - LHR

Nonstop9h 10mBritish Airways

Tue 21/1009:25LHR - IAH

Nonstop10h 20mBritish Airways

Deal found 28/8£473

Sun 14/921:40IAH - LHR

Nonstop9h 20mBritish Airways

Tue 30/914:50LHR - IAH

Nonstop10h 25mBritish Airways

Deal found 27/8£474

Last-minute flights from Houston to Heathrow
Discover last-minute flight deals from Houston to Heathrow. Data last updated 29 August 2025 and is based on user searches.

Wed 3/914:33HOU - LHR

1 stop12h 27mBritish Airways

Wed 10/908:20LHR - HOU

1 stop13h 35mBritish Airways

Deal found 27/8£528

Wed 3/914:33HOU - LHR

1 stop12h 27mIberia

Fri 19/912:00LHR - HOU

1 stop14h 11mIberia

Deal found 28/8£529

Sun 7/913:05HOU - LHR

1 stop11h 40mMultiple Airlines

Tue 28/1008:55LHR - HOU

1 stop13h 53mMultiple Airlines

Deal found 27/8£537

Sun 14/912:00IAH - LHR

1 stop17h 50mAir Canada

Tue 30/909:30LHR - IAH

1 stop16h 12mAir Canada

Deal found 28/8£455

Sun 14/910:00IAH - LHR

1 stop14h 30mMultiple Airlines

Tue 30/906:50LHR - IAH

2 stops18h 52mMultiple Airlines

Deal found 27/8£458

Sun 14/916:20IAH - LHR

Nonstop9h 20mUnited Airlines

Tue 30/913:40LHR - IAH

Nonstop10h 15mUnited Airlines

Deal found 27/8£466

Sun 14/916:20IAH - LHR

Nonstop9h 20mUnited Airlines

Wed 24/909:30LHR - IAH

1 stop14h 20mUnited Airlines

Deal found 28/8£467

Sun 21/910:00IAH - LHR

1 stop14h 30mAir Canada

Tue 7/1009:30LHR - IAH

1 stop16h 12mAir Canada

Deal found 28/8£454

Sun 21/910:00IAH - LHR

1 stop17h 35mMultiple Airlines

Tue 7/1006:00LHR - IAH

2 stops22h 14mMultiple Airlines

Deal found 28/8£456

Tue 23/916:20IAH - LHR

Nonstop9h 20mUnited Airlines

Wed 8/1007:25LHR - IAH

1 stop15h 10mUnited Airlines

Deal found 28/8£465

Mon 29/915:30IAH - LHR

Nonstop9h 10mBritish Airways

Wed 8/1014:50LHR - IAH

Nonstop10h 25mBritish Airways

Deal found 27/8£386

Mon 29/916:29IAH - LHR

1 stop12h 21mBritish Airways

Fri 10/1014:50LHR - IAH

Nonstop10h 25mBritish Airways

Deal found 27/8£389

One-way flights from Houston to Heathrow
Search for one-way flight options from Houston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.

Thu 2/1005:50IAH - LHR

3 stops34h 15mMultiple Airlines

Deal found 27/8£187

Thu 13/1119:52IAH - LHR

3 stops39h 38mMultiple Airlines

Deal found 27/8£194

Tue 14/1011:42IAH - LHR

2 stops24h 03mMultiple Airlines

Deal found 27/8£197

Sat 6/917:46IAH - LHR

3 stops58h 34mMultiple Airlines

Deal found 28/8£198

Thu 25/922:02IAH - LHR

2 stops37h 43mMultiple Airlines

Deal found 28/8£200

Wed 3/908:00IAH - LHR

3 stops48h 15mMultiple Airlines

Deal found 26/8£202

Fri 26/905:50IAH - LHR

3 stops34h 10mMultiple Airlines

Deal found 28/8£204

Thu 11/922:02IAH - LHR

2 stops54h 18mMultiple Airlines

Deal found 28/8£205

Fri 3/1005:50IAH - LHR

3 stops29h 55mMultiple Airlines

Deal found 27/8£206

Sun 14/905:50IAH - LHR

3 stops55h 00mMultiple Airlines

Deal found 27/8£207

Tue 23/907:30IAH - LHR

3 stops29h 20mMultiple Airlines

Deal found 28/8£208

Sun 5/1020:32HOU - LHR

1 stop11h 53mBritish Airways

Deal found 28/8£283

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 19/1

17:18-12:05

1 stop12h 47m

London Heathrow

Thu 29/1

11:55-20:06

1 stop14h 11m

£397

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/2

15:50-06:50

Nonstop9h 00m

London Heathrow

Sat 14/2

15:25-20:00

Nonstop10h 35m

£423

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/2

17:18-12:05

1 stop12h 47m

London Heathrow

Sat 14/2

15:25-20:00

Nonstop10h 35m

£426

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 12/1

18:25-12:15

1 stop11h 50m

London Heathrow

Sun 25/1

10:15-18:03

1 stop13h 48m

£434

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 18/11

18:37-12:15

1 stop11h 38m

London Heathrow

Sun 23/11

14:55-23:57

1 stop15h 02m

£434

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 11/2

16:24-11:40

1 stop13h 16m

London Heathrow

Mon 23/2

10:35-20:03

1 stop15h 28m

£434

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 26/1

18:25-12:15

1 stop11h 50m

London Heathrow

Sun 8/2

12:10-20:05

1 stop13h 55m

£434

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 9/2

16:24-11:40

1 stop13h 16m

London Heathrow

Sun 22/2

10:35-17:49

1 stop13h 14m

£434

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 16/2

18:31-12:15

1 stop11h 44m

London Heathrow

Sun 1/3

10:15-17:49

1 stop13h 34m

£434

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 2/2

16:24-10:00

1 stop11h 36m

London Heathrow

Sun 15/2

12:10-20:03

1 stop13h 53m

£434

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 39 results

Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Houston with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to London Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £112). Flying from Houston to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to LHR?

It’s typically best to fly out from Houston to London Heathrow Airport in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from Houston to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines, Virgin Atlantic, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,941 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,941 reviews

United Airlines

7.4

Good

8,941 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Virgin Atlantic

7.4

Good

661 reviews

United Airlines

7.4

Good

8,941 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Iberia

7.0

Good

2,894 reviews

United Airlines

7.4

Good

8,941 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Lufthansa

6.8

Okay

7,372 reviews

United Airlines

7.4

Good

8,941 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

British Airways

6.7

Okay

7,320 reviews

United Airlines

7.4

Good

8,941 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

How long is the flight from Houston to London Heathrow Airport?
Departing from Houston to London Heathrow Airport will take you 9h. Airlines will cover a distance of 4820 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £299. Other airlines that can offer you cheap pricing are United Airlines, from £387, and Iberia, from £449. These flights start at 50% lower than the current average price 3 months from now.
Can I find deals for flights from Houston to Heathrow that include hotel bookings?
Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Houston to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.
Can I find deals for business class flights from Houston to Heathrow?
Yes. Cheapflights offers flight deals from Houston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Houston to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £112). Flying from Houston to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Houston to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£299	Average£466	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£387	Average£615	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Iberia	Cheapest£449	Average£569	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Lufthansa	Cheapest£452	Average£546	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£463	Average£721	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Houston to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Houston today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Houston to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Houston to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Houston to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Houston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Not ready to book yet? You can track prices for flights from Houston to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Houston to London Heathrow Airport from £187

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 78 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Houston to Heathrow

Cheapest flights from Houston to HeathrowExplore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Houston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Houston to London Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Houston to Heathrow. Price data was last updated on 22 August 2025.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

What is the cheapest time of day to fly from HOU to LHR?

Find hourly flight availability from Houston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 August 2025.

How much does it cost for a return flight from Houston to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines, Virgin Atlantic, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Houston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Houston to London Heathrow Airport?

What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

Can I find deals for flights from Houston to Heathrow that include hotel bookings?

How can I find direct flights from Houston to Heathrow?

Can I find deals for business class flights from Houston to Heathrow?

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Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.